# 透明度
# 透明度在ps里貌似不管用
set term postscript eps dashed color
set output 'example12.ps'
set style fill transparent solid 0.4
set style fill solid 0.4
plot 'example12.dat' using 1:2 with filledcurves y1=0 lw 2 lc rgb "orange-red",\
       '' using 1:3 with filledcurves y1=0 lw 2 lc rgb "purple"
